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Climate change is robbing rice of its nutrition

Climate change is robbing rice of its nutrition

Science
May 25 (UPI) -- As carbon dioxide concentrations in Earth's atmosphere increase, the nutritional value of rice will decline, new research shows. Researchers with the University of Tokyo tracked rice growth at experimental field sites across Japan and China. A system of pipes delivered different levels of CO2 to the rice plants. Wind sensors and gas detectors helped scientists ensure each plant was exposed to the correct amount of CO2. Scientists analyzed rice samples from the experimental plants, measuring the amounts of iron, zinc, protein, and vitamins B1, B2, B5, and B9 found in each. Their data revealed an inverse relationship between CO2 levels and nutritional qualities -- the higher the CO2 level, the lower the levels of vitamins and minerals. Researchers published the findings thi...